MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, they offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The connector family includes front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, all meeting rigorous military specifications. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Ideal for applications requiring durability and performance, these connectors are suitable for a wide range of industries.